Modified PP sealing ring

The invention discloses a modified PP (polypropylene) sealing ring, and particularly relates to the technical field of lithium battery sealing rings, and the modified PP sealing ring comprises the following raw materials (in percentage): 40-60% of carbon monoxide, 10-25% of ethylene, 10-25% of propy...

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Hauptverfasser: CHEN JINGXIAN, CHEN HUI'ER, LI XUEYING
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creator CHEN JINGXIAN
CHEN HUI'ER
LI XUEYING
description The invention discloses a modified PP (polypropylene) sealing ring, and particularly relates to the technical field of lithium battery sealing rings, and the modified PP sealing ring comprises the following raw materials (in percentage): 40-60% of carbon monoxide, 10-25% of ethylene, 10-25% of propylene, 5-10% of a catalyst, 5-10% of a tackifying aid, 1-4% of an anti-aging agent and 1-5% of a waterproof agent. The invention provides a modified PP sealing ring, which is used for sealing a battery by adopting a cap combination made of a sealing ring made of a common PP material, electrolyte can permeate and leak after long-time storage, an insulating sealing ring is easy to age after long-time storage, a good sealing effect cannot be achieved, and the storage life of the battery is relatively short, so that the invention provides the modified PP sealing ring. The material density is higher than that of a common PP sealing ring, the high temperature resistance is better than that of the PP sealing ring, the seal
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The invention provides a modified PP sealing ring, which is used for sealing a battery by adopting a cap combination made of a sealing ring made of a common PP material, electrolyte can permeate and leak after long-time storage, an insulating sealing ring is easy to age after long-time storage, a good sealing effect cannot be achieved, and the storage life of the battery is relatively short, so that the invention provides the modified PP sealing ring. 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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
title Modified PP sealing ring
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